CN109455237B - Remote control crawler-type transport vechicle - Google Patents
Remote control crawler-type transport vechicle Download PDFInfo
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- CN109455237B CN109455237B CN201811359707.6A CN201811359707A CN109455237B CN 109455237 B CN109455237 B CN 109455237B CN 201811359707 A CN201811359707 A CN 201811359707A CN 109455237 B CN109455237 B CN 109455237B
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- remote control
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- hydraulic
- oil
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K17/00—Arrangement or mounting of transmissions in vehicles
- B60K17/04—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing
- B60K17/14—Arrangement or mounting of transmissions in vehicles characterised by arrangement, location, or kind of gearing the motor of fluid or electric gearing being disposed in or adjacent to traction wheel
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
- B62D55/30—Track-tensioning means
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Manipulator (AREA)
- Motor Power Transmission Devices (AREA)
Abstract
The invention provides a remotely controllable crawler-type transport vehicle, comprising: the device comprises a remote control transmitting device, a remote control receiving device, a crawler chassis, a car hopper, an engine and a hydraulic device; the crawler chassis is provided with a hopper and a remote control receiving device, and the engine drives the crawler chassis to advance and retreat and steer through a hydraulic device; the remote control receiving device is in wireless communication connection with the remote control transmitting device and is in wired communication connection with the engine and the hydraulic device; the remote control transmitting device includes: the device comprises a first remote control rod, a second remote control rod, a first wireless transceiver, a joystick analog acquisition module, a transmitting processor and a peripheral circuit thereof; the transmitting processor is respectively in communication connection with the first remote control rod and the second remote control rod through the control rod analog quantity acquisition module and is in communication connection with the remote control receiving device through the first wireless transceiver. The crawler-type transport vehicle is controlled in a remote control mode, an operator controls the rocker to control the transport vehicle to transport, remote control can be conducted in a dangerous area, and safety of a driver is guaranteed.
Description
Technical Field
The invention relates to the field of roadway transportation devices, in particular to a remote control crawler-type transportation vehicle.
Background
In the development of mineral resources, the transportation of materials in the process of tunneling tunnels at present mainly depends on manual transportation, and the labor intensity of workers is high and the production efficiency is low. In order to change the lagging production mode, the labor intensity and the liberation productivity of workers are reduced, and rubber wheel transport vehicles are developed by some manufacturers. Because a large amount of sundries such as float coal, broken stone and the like exist in the tunneling roadway, the adhesive passing performance of the rubber wheels is poor, the running stability is low, the tires are easy to cut, and a certain danger exists in the process of operating the transport vehicle in the tunneling roadway by a driver. Therefore, the coal mine industry is urgently required to stably run under severe road conditions, so that a driver can be far away from a transport vehicle with a remote control function for excavating dangerous environments in a roadway.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a remotely controllable crawler-type transport vehicle, which comprises: the device comprises a remote control transmitting device, a remote control receiving device, a crawler chassis, a car hopper, an engine and a hydraulic device;
the crawler chassis is provided with a hopper and a remote control receiving device, and the engine drives the crawler chassis to advance and retreat and steer through a hydraulic device; the remote control receiving device is in wireless communication connection with the remote control transmitting device and is in wired communication connection with the engine and the hydraulic device;
the remote control transmitting device includes: the device comprises a first remote control rod, a second remote control rod, a first wireless transceiver, a joystick analog acquisition module, a transmitting processor and a peripheral circuit thereof;
the transmitting processor is respectively in communication connection with the first remote control rod and the second remote control rod through the control rod analog quantity acquisition module and is in communication connection with the remote control receiving device through the first wireless transceiver.
Preferably, the joystick analog acquisition module includes: a plurality of integrated circuit amplifiers U, a Header connector Q and a resistor R which are in one-to-one correspondence with the integrated circuit amplifiers;
the output pins of the first remote control rod and the second remote control rod are respectively connected with the forward input pins of the integrated circuit amplifiers in one-to-one correspondence through a Header connector; the reverse input pin of the integrated circuit amplifier is connected with the output pin of the integrated circuit amplifier through a resistor; the output pins of the integrated circuit amplifiers are respectively connected with the transmitting processor.
Preferably, the crawler chassis comprises: the device comprises a base frame, a track frame, tracks, a tensioning device, a thrust wheel assembly and guide wheels;
two crawler frames are symmetrically arranged on the side edge of the base frame by taking the central line as a symmetrical axis, crawler tracks are respectively arranged along the crawler frames, and the crawler tracks adopt double-induction toothed crawler tracks; the guide wheel is arranged at the advancing end of the crawler frame and is movably connected with the crawler in a matching way; a tensioning device is arranged between the retreating end of the crawler frame and the crawler; one end of the thrust wheel assembly is fixed at the bottom of the base frame, and the other end is movably connected with the crawler belt.
Preferably, the tensioning device comprises: the device comprises a tensioning wheel, a plunger pump, an oil feeding pump, a driving pump, a first hydraulic pump, a displacement sensor and a fixing plate;
the fixed plate is fixed on the crawler frame, and the fixed plate is sequentially and fixedly provided with a first hydraulic pump, a driving pump, an oil feeding pump, a plunger pump and a tensioning wheel; the tensioning wheel is abutted with the crawler belt at the retreating end of the crawler belt frame; the first hydraulic pump is connected with a telescopic cavity of the driving pump through an oil conveying pipe, a telescopic rod of the driving pump is connected with a telescopic rod of the oil feeding pump, an oil feeding port is arranged on the telescopic cavity of the oil feeding pump, an oil passing through hole is formed in the telescopic rod of the plunger pump, and the oil feeding port is connected with the telescopic cavity of the plunger pump through the oil passing through hole; the end, provided with the telescopic rod, of the plunger pump is provided with a rod end fixing plate, the end, provided with a telescopic cavity, of the plunger pump is provided with a cavity end baffle, a tensioning spring and a displacement sensor are arranged on the plunger pump between the rod end fixing plate and the cavity end baffle, and the tensioning spring is connected with the rod end fixing plate and the cavity end baffle; the side surface of the cavity end baffle, which is far away from the plunger pump, is provided with a tensioning wheel through a connecting arm.
Preferably, a one-way valve, a pressure reducing valve and a first reversing valve are sequentially arranged on the oil delivery pipe between the telescopic cavity of the driving pump and the first hydraulic pump; the oil inlet of the first reversing valve is connected with the first hydraulic pump, the oil outlet is connected with the telescopic cavity of the driving pump through the pressure reducing valve and the one-way valve, a one-way controllable valve is arranged between the telescopic cavity of the driving pump and the hydraulic oil source, and the control end of the one-way controllable valve is connected with the first hydraulic pump through the second reversing valve.
Preferably, the thrust wheel assembly comprises: the device comprises a first thrust wheel, a second thrust wheel, a thrust spring, a first thrust arm, a second thrust arm, a first connecting arm, a second connecting arm and a connecting shaft;
the first supporting wheel is connected with one end of the first connecting arm, the second supporting wheel is connected with one end of the second connecting arm, and the other end of the first connecting arm is hinged with the other end of the second connecting arm; the middle part of the first connecting arm is hinged with one end of the first supporting arm, the middle part of the second connecting arm is hinged with one end of the second supporting arm, the other end of the first supporting arm is connected with the other end of the second supporting arm through a connecting shaft, and a supporting spring is arranged on the connecting shaft between the first supporting arm and the second supporting arm; the thrust wheel assembly is fixed at the bottom of the base frame through the fixing position of the end part of the connecting shaft.
Preferably, the hydraulic device comprises: a second hydraulic pump, a first drive motor, a second drive motor, and a plurality of load-sensitive proportional valves;
the first driving motor is arranged on a crawler frame at one side of the base frame and drives the crawler to walk; the second driving motor is arranged on the crawler frame at the other side of the base frame and drives the crawler to walk; the first driving motor and the second driving motor are respectively connected with the second hydraulic pump through oil delivery pipes, and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the second hydraulic pump and the first driving motor and the oil delivery pipes between the second hydraulic pump and the second driving motor.
Preferably, the back end of the hopper is hinged with the back end of the base frame; a hydraulic prop is arranged on the side edge between the forward end and the backward end of the hopper; the hydraulic support is connected with a second hydraulic pump through oil delivery pipes respectively; and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the hydraulic support and the second hydraulic pump.
Preferably, the remote control receiving device includes: a receiving processor, a peripheral circuit of the receiving processor, a second wireless transceiver, a pyroelectric human body infrared sensor, a laser detector, a pressure sensor, a flow sensor and a speed sensor;
the pyroelectric human body infrared sensor and the laser detector are respectively arranged on a side plate of the car hopper, and the pressure sensor and the flow sensor are respectively arranged on an oil delivery pipe connected with the second hydraulic pump; the speed sensor is arranged on the base frame;
the second wireless transceiver, the pyroelectric human body infrared sensor, the laser detector, the pressure sensor, the flow sensor, the speed sensor, the load sensitive proportional valve, the engine, the first reversing valve control end and the second reversing valve control end are respectively connected with the receiving processor.
From the above technical scheme, the invention has the following advantages:
in the invention, the crawler-type transportation mode is adopted for the transportation vehicle, and the engine provides power for the transportation vehicle through the hydraulic device, so that the passing performance and transportation stability of the transportation vehicle are improved;
the crawler-type transport vehicle is controlled in a remote control mode, an operator controls the rocker to control the transport vehicle to transport, the operator is prevented from directly operating in a cab of the transport vehicle, remote control can be conducted in a dangerous area, and the safety of the driver is guaranteed;
the displacement sensor detects the displacement condition of the flexible end of the plunger pump in the tensioning device, and feeds back displacement signals to the receiving processor, the receiving processor supplements oil or discharges oil through intelligent control of the displacement signals, and then adjusts the tensioning condition of the crawler belt, so that the crawler belt is in an ideal tensioning state, the whole process is automatically completed, manual operation is not needed in the oiling process, the intelligent degree is high, and the service life of the crawler belt is prolonged.
Drawings
In order to more clearly illustrate the technical solutions of the present invention, the drawings that are needed in the description will be briefly introduced below, it being obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present invention.
Fig. 2 is a schematic view of a tensioner of the present invention.
FIG. 3 is a schematic view of a thrust wheel according to the present invention.
FIG. 4 is a circuit diagram of an acquisition module according to the present invention
Wherein 1, remote control transmitting device, 2, car hopper, 3, pedestal, 4, track, 5, overspeed device tensioner, 501, idler, 502, plunger pump, 503, displacement sensor, 504, oil feed pump, 505, driving pump, 506, check valve, 507, relief valve, 508, first switching-over valve, 509, first hydraulic pump, 510, one-way controllable valve, 511, second switching-over valve, 512, fixed plate, 6, thrust wheel subassembly, 601, first thrust wheel, 602, first linking arm, 603, second linking arm, 604, second thrust wheel, 605, second thrust arm, 606, linking axle, 607, thrust spring, 608, first thrust arm, 7, track frame, 8, engine, 9, remote control receiving device, 10, hydraulic means, 11, leading wheel, 12, hydraulic prop.
Detailed Description
In order to make the objects, features and advantages of the present invention more comprehensible, embodiments accompanied with specific embodiments and figures are described in detail below, wherein the embodiments are described only in part but not in all embodiments. All other embodiments, based on the embodiments in this patent, which would be within the purview of one of ordinary skill in the art without the particular effort to make the invention are intended to be within the scope of the patent protection.
Embodiment one:
the embodiment provides a remote control crawler-type transport vehicle, includes: a remote control transmitting device 1, a remote control receiving device 9, a crawler chassis, a car hopper 2, an engine 8 and a hydraulic device 10;
the crawler chassis is provided with a hopper 2 and a remote control receiving device 9, and the engine 8 drives the crawler chassis to advance and retreat and steer through a hydraulic device 10; the remote control receiving device 9 is in wireless communication connection with the remote control transmitting device 1 and is in wired communication connection with the engine 8 and the hydraulic device 10; the remote control receiving device 9 receives the control signals of the remote control transmitting device 1, and the receiving processor controls the operation of the engine 8 and the hydraulic device 10 according to the control signals;
the remote control transmitting apparatus 1 includes: the device comprises a first remote control rod, a second remote control rod, a first wireless transceiver, a joystick analog acquisition module, a transmitting processor and a peripheral circuit thereof;
the transmitting processor is respectively in communication connection with the first remote control rod and the second remote control rod through the control rod analog quantity acquisition module and is in communication connection with the remote control receiving device 9 through the first wireless transceiver.
Wherein, the control lever analog acquisition module includes: a plurality of integrated circuit amplifiers U, a Header connector Q and a resistor R which are in one-to-one correspondence with the integrated circuit amplifiers; the first remote control rod and the second remote control rod are carbon film potentiometer type rocking bars; the output pins of the first remote control rod and the second remote control rod are respectively connected with the forward input pins of the integrated circuit amplifiers in one-to-one correspondence through a Header connector; the reverse input pin of the integrated circuit amplifier is connected with the output pin of the integrated circuit amplifier through a resistor; the output pins of the integrated circuit amplifiers are respectively connected with the transmitting processor. The integrated circuit amplifier U is completed by adopting an OPA357 chip, the OPA357 is a 250MHz rail-to-rail single-path operational amplifier, the power supply voltage is 5V, and three analog quantity inputs of the rocker are all connected with the OPA357 for voltage following. The rocker uses the high-precision REF5025 voltage reference source chip to provide 2.5V voltage, and the output current of the rocker is 0.25mA, so that the current filling requirement of an IO pin of an STM32 processor can be met. The output of the integrated circuit amplifier OPA357 is connected to the internal ADC pin of the STM32 transmit processor.
Embodiment two:
this embodiment is substantially the same as the first embodiment except that:
the crawler chassis comprises: the crawler belt tensioning device comprises a base frame 3, a crawler belt frame 7, crawler belts 4, a tensioning device 5, a thrust wheel assembly 6 and guide wheels;
two crawler frames 7 are symmetrically arranged on the side edge of the base frame 3 by taking a central line as a symmetrical axis, crawler tracks 4 are respectively arranged along the crawler frames 7, and the crawler tracks 4 adopt double-induction toothed crawler tracks; the guide wheel is arranged at the advancing end of the crawler frame 7 and is movably connected with the crawler 4 in a matching way; a tensioning device 5 is arranged between the retreating end of the crawler frame 7 and the crawler 4; one end of the thrust wheel assembly 6 is fixed at the bottom of the base frame 3, and the other end is movably connected with the crawler belt 4.
Wherein the tensioning device 5 comprises: tension pulley 501, plunger pump 502, oil feed pump 504, drive pump 505, first hydraulic pump 509, displacement sensor 503, and fixing plate 512;
the fixed plate 512 is fixed on the crawler frame 7, and a first hydraulic pump 509, a driving pump 505, an oil feed pump 504, a plunger pump 502 and a tensioning wheel 501 are sequentially fixed on the fixed plate 512; the tensioning wheel 501 is abutted with the crawler belt 4 at the retreating end of the crawler belt frame 7; the first hydraulic pump 509 is connected with a telescopic cavity of the driving pump 505 through an oil delivery pipe, a telescopic rod of the driving pump 505 is connected with a telescopic rod of the oil feeding pump 504, an oil feeding port is arranged on the telescopic cavity of the oil feeding pump 504, an oil passing through hole is arranged in the telescopic rod of the plunger pump 502, and the oil feeding port is connected with the telescopic cavity of the plunger pump 502 through the oil passing through hole; a rod end fixing plate 512 is arranged at one end of the plunger pump 502, provided with a telescopic rod, a cavity end baffle is arranged at one end of the plunger pump 502, provided with a tensioning spring and a displacement sensor 503, arranged on the plunger pump 502 between the rod end fixing plate 512 and the cavity end baffle, and the tensioning spring is connected with the rod end fixing plate 512 and the cavity end baffle; the side of the chamber end baffle, which is far away from the plunger pump 502, is provided with a tensioning wheel 501 through a connecting arm.
A check valve 506, a pressure reducing valve 507 and a first reversing valve 508 are sequentially arranged on the oil delivery pipe between the telescopic cavity of the driving pump 505 and the first hydraulic pump 509; an oil inlet of the first reversing valve 508 is connected with a first hydraulic pump 509, an oil outlet is connected with a telescopic cavity of the driving pump 505 through a pressure reducing valve 507 and a one-way valve 506, a one-way controllable valve 510 is arranged between the telescopic cavity of the driving pump 505 and a hydraulic oil source, and a control end of the one-way controllable valve 510 is connected with the first hydraulic pump 509 through a second reversing valve 511. The first reversing valve 508 and the second reversing valve 511 are two-position two-way electromagnetic reversing valves.
Wherein, thrust wheel assembly 6 includes: the first thrust wheel 601, the second thrust wheel 604, the thrust spring 607, the first thrust arm 608, the second thrust arm 605, the first connecting arm 602, the second connecting arm 603 and the connecting shaft 606;
the first thrust wheel 601 is connected with one end of a first connecting arm 602, the second thrust wheel 604 is connected with one end of a second connecting arm 603, and the other end of the first connecting arm 602 is hinged with the other end of the second connecting arm 603; the middle part of the first connecting arm 602 is hinged with one end of a first supporting arm 608, the middle part of the second connecting arm 603 is hinged with one end of a second supporting arm 605, the other end of the first supporting arm 608 is connected with the other end of the second supporting arm 605 through a connecting shaft 606, and a supporting spring 607 is arranged on the connecting shaft 606 between the first supporting arm 608 and the second supporting arm 605; the thrust wheel assembly 6 is secured to the bottom of the base frame 3 by a securing location at the end of the connecting shaft 606.
Embodiment III:
this embodiment is substantially the same as the first embodiment except that:
the hydraulic device 10 includes: a second hydraulic pump, a first drive motor, a second drive motor, and a plurality of load-sensitive proportional valves;
the first driving motor is arranged on a crawler frame 7 at one side of the base frame 3 and drives the crawler belt 4 to walk; the second driving motor is arranged on a crawler frame 7 at the other side of the base frame 3 and drives the crawler belt 4 to walk; the first driving motor and the second driving motor are respectively connected with the second hydraulic pump through oil delivery pipes, and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the second hydraulic pump and the first driving motor and the oil delivery pipes between the second hydraulic pump and the second driving motor.
The back end of the hopper 2 is hinged with the back end of the base frame 3; a hydraulic prop 12 is arranged on the side between the forward end and the backward end of the hopper 2; the hydraulic supports 12 are respectively connected with a second hydraulic pump through oil delivery pipes; load sensitive proportional valves are respectively arranged on the oil delivery pipes between the hydraulic support column 12 and the second hydraulic pump.
Embodiment four:
the embodiment provides a remote control crawler-type transport vehicle, includes: a remote control transmitting device 1, a remote control receiving device 9, a crawler chassis, a car hopper 2, an engine 8 and a hydraulic device 10;
the crawler chassis is provided with a hopper 2 and a remote control receiving device 9, and the engine 8 drives the crawler chassis to advance and retreat and steer through a hydraulic device 10; the remote control receiving device 9 is in wireless communication connection with the remote control transmitting device 1 and is in wired communication connection with the engine 8 and the hydraulic device 10; the remote control receiving device 9 receives the control signals of the remote control transmitting device 1, and the receiving processor controls the operation of the engine 8 and the hydraulic device 10 according to the control signals;
the remote control transmitting apparatus 1 includes: the device comprises a first remote control rod, a second remote control rod, a first wireless transceiver, a joystick analog acquisition module, a transmitting processor and a peripheral circuit thereof;
the transmitting processor is respectively in communication connection with the first remote control rod and the second remote control rod through the control rod analog quantity acquisition module and is in communication connection with the remote control receiving device 9 through the first wireless transceiver.
Wherein, the control lever analog acquisition module includes: a plurality of integrated circuit amplifiers U, a Header connector Q and a resistor R which are in one-to-one correspondence with the integrated circuit amplifiers; the first remote control rod and the second remote control rod are carbon film potentiometer type rocking bars; the output pins of the first remote control rod and the second remote control rod are respectively connected with the forward input pins of the integrated circuit amplifiers in one-to-one correspondence through a Header connector; the reverse input pin of the integrated circuit amplifier is connected with the output pin of the integrated circuit amplifier through a resistor; the output pins of the integrated circuit amplifiers are respectively connected with the transmitting processor. The integrated circuit amplifier U is completed by adopting an OPA357 chip, the OPA357 is a 250MHz rail-to-rail single-path operational amplifier, the power supply voltage is 5V, and three analog quantity inputs of the rocker are all connected with the OPA357 for voltage following. The rocker uses the high-precision REF5025 voltage reference source chip to provide 2.5V voltage, and the output current of the rocker is 0.25mA, so that the current filling requirement of an IO pin of an STM32 processor can be met. The output end of the transmitting processor OPA357 is connected with an internal ADC pin of the STM32 processor.
The crawler chassis comprises: the crawler belt tensioning device comprises a base frame 3, a crawler belt frame 7, crawler belts 4, a tensioning device 5, a thrust wheel assembly 6 and guide wheels;
two crawler frames 7 are symmetrically arranged on the side edges of the base frame 3 by taking a central line as a symmetrical axis, crawler tracks 4 are respectively arranged along the crawler frames 7, and the crawler tracks 4 adopt double-induction toothed crawler tracks 4; the guide wheel is arranged at the advancing end of the crawler frame 7 and is movably connected with the crawler 4 in a matching way; a tensioning device 5 is arranged between the retreating end of the crawler frame 7 and the crawler 4; one end of the thrust wheel assembly 6 is fixed at the bottom of the base frame 3, and the other end is movably connected with the crawler belt 4.
Wherein the tensioning device 5 comprises: tension pulley 501, plunger pump 502, oil feed pump 504, drive pump 505, first hydraulic pump 509, displacement sensor 503, and fixing plate 512;
the fixed plate 512 is fixed on the crawler frame 7, and a first hydraulic pump 509, a driving pump 505, an oil feed pump 504, a plunger pump 502 and a tensioning wheel 501 are sequentially fixed on the fixed plate 512; the tensioning wheel 501 is abutted with the crawler belt 4 at the retreating end of the crawler belt frame 7; the first hydraulic pump 509 is connected with a telescopic cavity of the driving pump 505 through an oil delivery pipe, a telescopic rod of the driving pump 505 is connected with a telescopic rod of the oil feeding pump 504, an oil feeding port is arranged on the telescopic cavity of the oil feeding pump 504, an oil passing through hole is arranged in the telescopic rod of the plunger pump 502, and the oil feeding port is connected with the telescopic cavity of the plunger pump 502 through the oil passing through hole; a rod end fixing plate 512 is arranged at one end of the plunger pump 502, provided with a telescopic rod, a cavity end baffle is arranged at one end of the plunger pump 502, provided with a tensioning spring and a displacement sensor 503, arranged on the plunger pump 502 between the rod end fixing plate 512 and the cavity end baffle, and the tensioning spring is connected with the rod end fixing plate 512 and the cavity end baffle; the side of the chamber end baffle, which is far away from the plunger pump 502, is provided with a tensioning wheel 501 through a connecting arm.
A check valve 506, a pressure reducing valve 507 and a first reversing valve 508 are sequentially arranged on the oil delivery pipe between the telescopic cavity of the driving pump 505 and the first hydraulic pump 509; an oil inlet of the first reversing valve 508 is connected with a first hydraulic pump 509, an oil outlet is connected with a telescopic cavity of the driving pump 505 through a pressure reducing valve 507 and a one-way valve 506, a one-way controllable valve 510 is arranged between the telescopic cavity of the driving pump 505 and a hydraulic oil source, and a control end of the one-way controllable valve 510 is connected with the first hydraulic pump 509 through a second reversing valve 511. The first reversing valve 508 and the second reversing valve 511 are two-position two-way electromagnetic reversing valves. The first reversing valve 508 is used for controlling the on-off of an oil pipeline between the first hydraulic pump 509 and the telescopic cavity of the driving pump 505 according to the control signal of the receiving processor; when the receiving processor judges that grease does not need to be injected into the plunger pump 502 according to the detection signal of the displacement sensor 503, the receiving processor transmits a control signal to the first reversing valve 508, the oil inlet and the oil outlet of the first reversing valve 508 are not communicated, the driving pump 505 is not operated any more, and thus the plunger pump 502 is not operated; when the receiving processor judges that grease needs to be injected into the plunger pump 502 according to the detection signal of the displacement sensor 503, the receiving processor transmits a control signal to the first reversing valve 508, and the oil inlet and the oil outlet of the first reversing valve 508 are communicated to drive the pump 505 to operate, so that the plunger pump 502 acts and the tensioning degree of the crawler belt 4 is adjusted. During track tensioning adjustment, the one-way controllable valve 510 and the second reversing valve operate as follows: when hydraulic grease enters the drive pump 505, the second reversing valve 511 controls the one-way controllable valve 510 to be not communicated with the first hydraulic pump 509, so that the grease in the drive pump 505 cannot flow back to the oil source; when the drive pump 505 is reset, the second reversing valve 511 controls the one-way controllable valve 510 to communicate with the first hydraulic pump 509, and the grease in the drive pump 505 is returned to the oil source.
The displacement sensor detects the displacement condition of the flexible end of the plunger pump in the tensioning device, and feeds back displacement signals to the receiving processor, the receiving processor supplements oil or discharges oil through intelligent control of the displacement signals, and then adjusts the tensioning condition of the crawler belt, so that the crawler belt is in an ideal tensioning state, the whole process is automatically completed, manual operation is not needed in the oiling process, the intelligent degree is high, the crawler belt is prevented from being damaged due to uncontrollably tensioning degree of the tensioning device, and the service life of the crawler belt is prolonged.
Wherein, thrust wheel assembly 6 includes: the first thrust wheel 601, the second thrust wheel 604, the thrust spring 607, the first thrust arm 608, the second thrust arm 605, the first connecting arm 602, the second connecting arm 603 and the connecting shaft 606;
the first thrust wheel 601 is connected with one end of a first connecting arm 602, the second thrust wheel 604 is connected with one end of a second connecting arm 603, and the other end of the first connecting arm 602 is hinged with the other end of the second connecting arm 603; the middle part of the first connecting arm 602 is hinged with one end of a first supporting arm 608, the middle part of the second connecting arm 603 is hinged with one end of a second supporting arm 605, the other end of the first supporting arm 608 is connected with the other end of the second supporting arm 605 through a connecting shaft 606, and a supporting spring 607 is arranged on the connecting shaft 606 between the first supporting arm 608 and the second supporting arm 605; the thrust wheel assembly 6 is secured to the bottom of the base frame 3 by a securing location at the end of the connecting shaft 606.
The hydraulic device 10 includes: a second hydraulic pump, a first drive motor, a second drive motor, and a plurality of load-sensitive proportional valves;
the first driving motor is arranged on a crawler frame 7 at one side of the base frame 3 and drives the crawler belt 4 to walk; the second driving motor is arranged on a crawler frame 7 at the other side of the base frame 3 and drives the crawler belt 4 to walk; the first driving motor and the second driving motor are respectively connected with the second hydraulic pump through oil delivery pipes, and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the second hydraulic pump and the first driving motor and the oil delivery pipes between the second hydraulic pump and the second driving motor.
The back end of the hopper 2 is hinged with the back end of the base frame 3; a hydraulic prop 12 is arranged on the side between the forward end and the backward end of the hopper 2; the hydraulic supports 12 are respectively connected with a second hydraulic pump through oil delivery pipes; load sensitive proportional valves are respectively arranged on the oil delivery pipes between the hydraulic support column 12 and the second hydraulic pump. When the crawler-type carrier vehicle is unloaded, the receiving processor controls the hydraulic prop 12 to lift the vehicle hopper, and the advancing end of the vehicle hopper 2 is separated from the base frame to carry out unloading.
The remote control receiving apparatus 9 includes: a receiving processor, a peripheral circuit of the receiving processor, a second wireless transceiver, a pyroelectric human body infrared sensor, a laser detector, a pressure sensor, a flow sensor and a speed sensor;
the pyroelectric human body infrared sensor and the laser detector are respectively arranged on the side plate of the car hopper 2, and the pressure sensor and the flow sensor are respectively arranged on an oil delivery pipe connected with the second hydraulic pump; the speed sensor is arranged on the base frame 3;
the second wireless transceiver, the pyroelectric human body infrared sensor, the laser detector, the pressure sensor, the flow sensor, the speed sensor, the load sensitive proportional valve, the engine 8, the control end of the first reversing valve 508 and the control end of the second reversing valve 511 are respectively connected with the receiving processor.
The receiving processor detects whether a barrier exists or the distance between people is relatively close in the running process of the transport vehicle through detection signals of the pyroelectric human body infrared sensor and the laser detector, so that the safety of the transport vehicle in the running process is enhanced.
The crawler-type transport vehicle is controlled in a remote control mode, an operator controls the rocker to control the transport vehicle to transport, the operator is prevented from directly operating in a cab of the transport vehicle, remote control can be conducted in a dangerous area, and the safety of the driver is guaranteed.
The terms "first," "second," "third," "fourth" and the like in the description and in the claims and in the above drawings, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the invention described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (6)
1. A remotely controlled tracked carrier vehicle, comprising: the device comprises a remote control transmitting device (1), a remote control receiving device (9), a crawler chassis, a car hopper (2), an engine (8) and a hydraulic device (10);
the crawler chassis is provided with a hopper (2) and a remote control receiving device (9), and the engine (8) drives the crawler chassis to advance and retreat and steer through a hydraulic device (10); the remote control receiving device (9) is in wireless communication connection with the remote control transmitting device (1) and is in wired communication connection with the engine (8) and the hydraulic device (10);
the remote control transmitting device (1) comprises: the device comprises a first remote control rod, a second remote control rod, a first wireless transceiver, a joystick analog acquisition module, a transmitting processor and a peripheral circuit thereof;
the transmitting processor is respectively in communication connection with the first remote control rod and the second remote control rod through the control rod analog quantity acquisition module and is in communication connection with the remote control receiving device (9) through the first wireless transceiver;
the crawler chassis comprises: the crawler belt tensioning device comprises a base frame (3), a crawler belt frame (7), a crawler belt (4), a tensioning device (5), a thrust wheel assembly (6) and guide wheels;
two crawler frames (7) are symmetrically arranged on the side edge of the base frame (3) by taking a central line as a symmetrical axis, crawler belts (4) are respectively arranged along the crawler frames (7), and the crawler belts (4) adopt double-induction toothed crawler belts (4); the guide wheel is arranged at the advancing end of the crawler frame (7) and is movably connected with the crawler (4) in a matching way; a tensioning device (5) is arranged between the retreating end of the crawler frame (7) and the crawler (4); one end of the thrust wheel assembly (6) is fixed at the bottom of the base frame (3), and the other end is movably connected with the crawler belt (4);
the tensioning device (5) comprises: a tensioning wheel (501), a plunger pump (502), an oil feeding pump (504), a driving pump (505), a first hydraulic pump (509), a displacement sensor (503) and a fixing plate (512);
the fixed plate (512) is fixed on the crawler frame (7), and the fixed plate (512) is sequentially and fixedly provided with a first hydraulic pump (509), a driving pump (505), an oil feeding pump (504), a plunger pump (502) and a tensioning wheel (501); the tensioning wheel (501) is abutted with the crawler belt (4) at the retreating end of the crawler belt frame (7); the first hydraulic pump (509) is connected with a telescopic cavity of the driving pump (505) through an oil delivery pipe, a telescopic rod of the driving pump (505) is connected with a telescopic rod of the oil feeding pump (504), an oil feeding port is arranged on the telescopic cavity of the oil feeding pump (504), an oil passing through hole is arranged in the telescopic rod of the plunger pump (502), and the oil feeding port is connected with the telescopic cavity of the plunger pump (502) through the oil passing through hole; one end of the plunger pump (502) provided with a telescopic rod is provided with a rod end fixing plate (512), one end of the plunger pump (502) provided with a telescopic cavity is provided with a cavity end baffle, a tensioning spring and a displacement sensor (503) are arranged on the plunger pump (502) between the rod end fixing plate (512) and the cavity end baffle, and the tensioning spring is connected with the rod end fixing plate (512) and the cavity end baffle; the side surface of the cavity end baffle, which is far away from the plunger pump (502), is provided with a tensioning wheel (501) through a connecting arm;
the control lever analog acquisition module comprises: a plurality of integrated circuit amplifiers U, a Header connector Q and a resistor R which are in one-to-one correspondence with the integrated circuit amplifiers;
the output pins of the first remote control rod and the second remote control rod are respectively connected with the forward input pins of the integrated circuit amplifiers in one-to-one correspondence through a Header connector; the reverse input pin of the integrated circuit amplifier is connected with the output pin of the integrated circuit amplifier through a resistor; the output pins of the integrated circuit amplifiers are respectively connected with the transmitting processor.
2. The remotely controlled tracked carrier vehicle according to claim 1, wherein,
a one-way valve (506), a pressure reducing valve (507) and a first reversing valve (508) are sequentially arranged on an oil delivery pipe between a telescopic cavity of the driving pump (505) and the first hydraulic pump (509); an oil inlet of the first reversing valve (508) is connected with the first hydraulic pump (509), an oil outlet is connected with a telescopic cavity of the driving pump (505) through the pressure reducing valve (507) and the one-way valve (506), a one-way controllable valve (510) is arranged between the telescopic cavity of the driving pump (505) and a hydraulic oil source, and a control end of the one-way controllable valve (510) is connected with the first hydraulic pump (509) through the second reversing valve (511).
3. The remotely controlled tracked carrier vehicle according to claim 1, wherein,
the thrust wheel assembly (6) comprises: the device comprises a first thrust wheel (601), a second thrust wheel (604), a thrust spring (607), a first thrust arm (608), a second thrust arm (605), a first connecting arm (602), a second connecting arm (603) and a connecting shaft (606);
the first thrust wheel (601) is connected with one end of a first connecting arm (602), the second thrust wheel (604) is connected with one end of a second connecting arm (603), and the other end of the first connecting arm (602) is hinged with the other end of the second connecting arm (603); the middle part of the first connecting arm (602) is hinged with one end of a first supporting arm (608), the middle part of the second connecting arm (603) is hinged with one end of a second supporting arm (605), the other end of the first supporting arm (608) is connected with the other end of the second supporting arm (605) through a connecting shaft (606), and a supporting spring (607) is arranged on the connecting shaft (606) between the first supporting arm (608) and the second supporting arm (605); the thrust wheel assembly (6) is fixed at the bottom of the base frame (3) through the fixing position of the end part of the connecting shaft (606).
4. The remotely controlled tracked carrier vehicle according to claim 1, wherein,
the hydraulic device (10) comprises: a second hydraulic pump, a first drive motor, a second drive motor, and a plurality of load-sensitive proportional valves;
the first driving motor is arranged on a crawler frame (7) at one side of the base frame (3) and drives the crawler belt (4) to walk; the second driving motor is arranged on a crawler frame (7) at the other side of the base frame (3) and drives the crawler belt (4) to walk; the first driving motor and the second driving motor are respectively connected with the second hydraulic pump through oil delivery pipes, and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the second hydraulic pump and the first driving motor and the oil delivery pipes between the second hydraulic pump and the second driving motor.
5. The remotely controlled tracked carrier vehicle according to claim 4, wherein,
the retreating end of the hopper (2) is hinged with the retreating end of the base frame (3); a hydraulic prop (12) is arranged on the side edge between the advancing end and the retreating end of the car hopper (2); the hydraulic support (12) is connected with a second hydraulic pump through oil delivery pipes respectively; and load sensitive proportional valves are respectively arranged on the oil delivery pipes between the hydraulic support column (12) and the second hydraulic pump.
6. The remotely controlled tracked carrier vehicle according to any one of claims 1 to 5, wherein,
the remote control receiving device (9) comprises: a receiving processor, a peripheral circuit of the receiving processor, a second wireless transceiver, a pyroelectric human body infrared sensor, a laser detector, a pressure sensor, a flow sensor and a speed sensor;
the pyroelectric human body infrared sensor and the laser detector are respectively arranged on a side plate of the car hopper (2), and the pressure sensor and the flow sensor are respectively arranged on an oil delivery pipe connected with the second hydraulic pump; the speed sensor is arranged on the base frame (3);
the second wireless transceiver, the pyroelectric human body infrared sensor, the laser detector, the pressure sensor, the flow sensor, the speed sensor, the load sensitive proportional valve, the engine (8), the control end of the first reversing valve (508) and the control end of the second reversing valve (511) are respectively connected with the receiving processor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811359707.6A CN109455237B (en) | 2018-11-15 | 2018-11-15 | Remote control crawler-type transport vechicle |
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| CN201811359707.6A CN109455237B (en) | 2018-11-15 | 2018-11-15 | Remote control crawler-type transport vechicle |
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| CN109455237B true CN109455237B (en) | 2023-09-22 |
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| CN111439317B (en) * | 2020-04-24 | 2021-05-18 | 深圳国信泰富科技有限公司 | Robot track operation protection architecture |
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